Unit 3

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Across
  1. 2. Outermost valence shell needs 8 electrons for stability
  2. 4. Number/Number assigned to the charge of an ion in building compounds
  3. 10. Octet Rule
  4. 11. Electrons are shared equally by bonded atoms; balanced charge
  5. 12. Charged group of covalently bonded atoms
  6. 13. Bonded atoms have an unequal attraction for shared electrons; unbalanced charge
  7. 14. Delocalized electrons move freely among positively charged ions
Down
  1. 1. only valence electrons of an element are placed around the element symbol
  2. 3. Uses Roman numeral to indicate ion's charge
  3. 5. a naming system
  4. 6. valence shell needs 8 electrons for stability
  5. 7. readily evaporates into a gas
  6. 8. When electrons are shared between 2 nonmetals
  7. 9. When electrons are transferred between a metal and nonmetal